<header>
 <h1><img src="__PUBLIC__/Admin/images/admin_logo.png"/></h1>
 <ul class="rt_nav">
  <li><a href="{:U('Admin/Index/index')}" target="_blank" class="website_icon">站点首页</a></li>
  <li><a href="#" class="clear_icon">清除缓存</a></li>
  <li><a href="#" class="admin_icon">{$Think.session.manager_username}</a></li>
  <li><a href="#" class="set_icon">账号设置</a></li>
  <li><a href="{:U('Admin/Login/index')}" class="quit_icon">安全退出</a></li>
 </ul>
</header>